It has been cloudy with occasional showers here in Osaka, Japan.
Tama means ball and Hi means fertilizer in Japanese.
Those are kneaded, made ball and dried.
Tamahi is dissolved by water little by little, so it takes effect in long term.
Some species love fertilizer. For example, Japanese cedar, Japanese apricot, gardenia, Crape myrtle, zelkova, beech, gingko, etc... Give them enough fertilizer.